摘要：An integrated process of heavy oil pyrolysis and coke gasification was proposed to realize the in-situ gasification of coke and provide syngas (CO/H-2) atmosphere for heavy oil pyrolysis to obtain high-quality liquid products. To reveal the reaction mechanism of syngas (CO/H-2) on heavy oil pyrolysis, the pyrolysis characterizations of three heavy oils including Dagang slurry oil (DG-SO), Qingdao vacuum residue (QD-VR) and Canadian oil-sands bitumen (CA-OB) were evaluated at different atmospheres (N-2, CO, CO/H-2, and H-2). The results showed that compared with QD-VR and CA-OB, DG-SO with high content of aromatics but high Conradson carbon residue (CCR) value was not suitable for the integrated process of heavy oil pyrolysis and coke gasification. Compared with the N-2 atmosphere, the pyrolysis oil yields of DG-SO, QD-VR, and CA-OB increased in turn under CO, CO/H-2, and H-2 atmospheres. On the contrary, their coke and gas yields decreased in turn. Furthermore, the contents of CH4, C-2-C-5, and CO2 in pyrolysis gases all decreased in turn, while the contents of their alkane, olefin, aromatic hydrocarbon, and oxygen /nitrogen/sulfur compounds in pyrolysis oil increased in turn. The change of oil and gas composition indicated that compared with N-2, both CO and H-2 could inhibit further decomposition of liquid products. The reactivity of coke showed that CO and H-2 could reduce the degree of condensation of coke to increase its reactivity, but the effect of CO was not as good as that of H-2.

关键字：Syngas; Heavy oil; Pyrolysis properties; Reaction atmospheres

ISSN号：0016-2361

卷、期、页：卷: 324子辑: B

发表日期：2022-09-15

影响因子：6.608900

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,SCIE（科学引文索引网络版）

发表期刊名称：FUEL

通讯作者：熊青安,黄由俭

第一作者：张玉明,李家州,张炜

论文类型：期刊论文

论文概要：熊青安,张玉明,黄由俭,李家州,张炜，Fundamental study of the integrated process of heavy oil pyrolysis and coke gasification. Part I: Effect of CO and H-2 in syngas atmosphere on heavy oil pyrolysis，FUEL，2022，卷: 324子辑: B

论文题目：Fundamental study of the integrated process of heavy oil pyrolysis and coke gasification. Part I: Effect of CO and H-2 in syngas atmosphere on heavy oil pyrolysis